Yes, you need longer wheel bolts with 10mm spacers. Only if the bolt thread is long enough can the bolts provide proper clamping force to keep these 10mm spacers and wheels balanced. Simply, 10mm spacers occupy about 10mm bolt shank which stops the OEM wheel bolts from engaging the full thread depth of the bearing. Therefore, you need about 10mm longer wheel bolts.
The general rule of thumb is that the thread length must be equal to or greater than the diameter of the bolt itself. Giving an example, an M14 wheel bolt would need at least 14mm threads to ensure a safe engagement. If the OE wheel bolt length is 27mm and you get a 10mm wheel spacer installed, it’s probably best to get 37mm wheel bolts.
What Types of 10mm Spacers Are Best?
In most cases, slip-on 10mm spacers are better. They simply slide over your existing wheel hubs. Since they have no pressed-in wheel studs, they can be lighter. It is true people try to make unsprung weight as little as possible. So, if you need 10mm spacers, slip-on types will do. The only problem is that you need new extended wheel bolts to fit. For vehicles that use wheel bolts rather than lug nuts, the installation process is the same as installing the wheels.
If you are looking for the best 10mm spacers, then the BONOSS forged lightweight plus aluminum spacer kit is a perfect option. BONOSS forged lightweight plus 10mm spacers machined with “Hollow Carved” holes. This design provides obviously lightweight effect while maintaining high strength. Lighter wheel spacers will operate well at a higher performance in most conditions. That is why most customers choose BONOSS forged aluminum lightweight plus 10mm spacers for performance upgrades.
How to Choose Longer Wheel Bolts for 10mm Spacers?
As a professional wheel accessories manufacturer, BONOSS provides a full line of extended wheel bolts to fit your aftermarket wheels and 10mm spacers, lengths from 27mm to 75mm. They are made to the ISO Grade 12.9 standards: the tensile strength is over 1,220 MPa. It makes sense that stronger bolts are safer, because the higher strength the bolt is, the more force it can withstand more force before breaking.
In addition, the seat parts of BONOSS forged ISO grade 12.9 wheel bolts are floating styles. This makes it convenient to change the seat types to fit various wheels. Compared to the integral-seat wheel bolts, they are more flexible. By simply changing the seat washer, you can transform a conical seat into a ball seat. Since the floating seats are not fixed, these extended wheel bolts can effectively prevent your valuable wheels from being scratched by the bolts
